In addition to the above listed rules and regulations, the following may apply.

Title 40, Code of Federal Regulations Part 60, Subparts A and AA - General Provisions and Standards of Performance for Steel Plants: Electric Arc Furnaces Constructed After October 21, 1974 and on or Before August 17, 1983

40 CFR Part 60, Subparts A and AAa - General Provisions and Standards of Performance for Steel Plants: Electric Arc Furnaces and Argon-Oxygen Decarburization Vessels Constructed After August 7, 1983

40 CFR Part 60, Subparts A and N - General Provisions and Standards of Performance for Primary Emissions from Basic Oxygen Process Furnaces for Which Construction is Commenced After June 11, 1973

40 CFR Part 60, Subparts A and Na - General Provisions and Standards of Performance for Secondary Emissions from Basic Oxygen Process Steelmaking Facilities for Which Construction is Commenced After January 20, 1983